this is a big part of the construction because essentially the workers walk up these very steep ramps, they are about 12 feet wide and what they are doing is they are using a mile of suspension cable, that's the ultimate plan, that will wrap around the tower 500 feet above sea level and workers are tethered to these as they work for obvious reasons. this is 137 bundles of cables each held in by smaller cables. once this is installed crews will remove these catwalks. this is how they get it done. the eastern span expected to open in late 2013. that's the latest from here. reporting live near the new bay bridge, christie smith. now back to you. >> thank you. the date is set for a defining moment in california same-sex marriage fight. september 6 is when the state supreme court will decide whether people who object to gay marriage have a right to support prop 8 in court. a federal court found the law violated civil rights of gay californians, those who want to ban gay marriage objected and wanted the state to take the issue to a higher court, but arnold schwarzenegger, who was governor a